Police approach a man and child after a siege at Caboolture. Photo: Seven News

A 26-year-old woman was also injured, although it appears she was not shot. She managed to escape the house while the man remained barricaded inside with the child.

An ambulance spokesman said the injured woman had brusing to the head and was having difficulty hearing, after the weapon was discharged near her head. She was expected to be taken to hospital shortly after midday.

Advertisement

Specialist police and negotiators then spent hours at the scene before rescuing the boy about 3pm.

At noon police declared an "emergent situation" and urged people in the streets surrounding Larkin Court to stay indoors. An exclusion zone covering the area within Male Road, Eloff Road, King John Drive, Van Beelen Street and Lagoon Creek was set up.